package com.example.day12;

/**
 * @author Lenovo
 */
public class SystemDemo {
    public static void main(String[] args) {
        long start = System.currentTimeMillis();
        for (int i = 0; i < 100000; i++) {
            System.out.println(i);
        }
        long end = System.currentTimeMillis();
        System.out.println("程序运行时间：" + (end - start) + "ms");
    }
}
